Question

define em wave. ......

Answer 1

Maxwell predicted that an escalated charge produces time varying electric field which in turn produces time varying magnetic field. the two fields are mutually perpendicular to each other and consist electromagnetic wave which propagates in the direction perpendicular to both the time varying fields.

$\underline{\bold{So, \: the \: electromagnetic \: wave \: is \: the }}$
$\underline{\bold{ propagation \: of \: time \: varying }}$
$\underline{\bold{ sinusoidal\:electric \: and \: magnetic }}$
$\underline{\bold{ field \: perpendicular\: to \: each \: other}}$
$\underline{\bold{and \: in \: the \: direction\: perpendicular}}$
$\underline{\bold{to \: both \: the \: fields.}}$

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Answer 2

Explanation:

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